Machine for use in lasting shoes



Dec. 20, 1927.

B JORGENSEN MACHINE FOR uss IN LASTING SHOES iled Jan. 21. 1922 Patented Dec. 20, 1927..

UNITED STATES PATENT OFFICE,

BERNHARDT JORGENSEN, OF BEVERLY, MASSACHUSETTS, ASSIGNOB TO UNITED SHOE MACHINERY CORPORATION, 'OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR USE IN LASTING- SHOES.

Application filed. January 21-, 1922. Serial No. 530,968.

This invention relates to the lasting of boots and shoes, and is herein illustrated 1n its application to the lasting of the shank portion of tennis shoes or sneakers 1n the manufacture of which it is customary to fasten the margin of the upper in lasted relation to the insole by adhesion throughthe use of cement. It will be evident, however, that in many of its aspects the invention is not limited to shank lasting nor restricted to the manufacture of any particular type of shoe. a

In the manufacture of tennis shoes and other like shoes the bottoms of which are made of rubber or. rubbercomposition it has been the usual practice heretofore to perform the lasting operation entirely by hand,

the workman using; his fingers to work the upper over the last and to press its margin into adhering relation. to the insole. Recently, however, machines have been devised for lasting in a more satisfactory and expeditious manner the foreparts and the heel end portions of rubber soled shoes. Such machines for forepart and heel end lasting respectively are shown, for example, in Letters Patent No. LhatlhSQOQhranted upon my application on. June 16. 1925. and in Letters Patent No. 1.6 34502, oranted upon my application on July 5, 1927.

It is an object of the present invention, among others. to provide a machine'by the use of which the shank portion, for example, of shoes of the above mentioned and other types may be lasted more quickly, easily and sati. .ctorily than heretofore. As herein illustrated. the lasting operation is performed by presenting the side of the shoe in engagen'ient with a driven lasting tool in such relation that the upper engaging face of the tool moves over the surface of the upper in a direction transverse to the edge of the shoe bottom, and by then turning or rocking the shoe to render the toolprogressively effective to work the upper tightly into conformity to the contour of the lastabout the edge of the shoe bottom and to end the margin of the upper inwardly upon the bottom face of the insole. In the lasting of slmes in which the margin of the upper s taste-mil to the insole by cement the upper is thus drawn tightly over the last While its struction and arrangement of lasting means and shoe positioningmeans designed-for working the upper into lasted position through turning or rocking movement of the shoe, the construction shown comprising a shoe, supporting member which is mounted for turning; movement withthe shoe relatively to a lasting tool to transfer the area of effective engagement of the tool with the upper toward the bottom'edge of the upper. For the purposes of side or shank lasting, as illustrated, the shoe positioning means is mounted to turn about an axis extending lengthwise of the shoe and intersecting the shoe on a line which issuhstantially or approximately the center of curvature of the shank portion of the shoe in a plane perpendicular to the shoe bottom, so that the turning of the shoe for the purposes in View may be effected without substantial bodily displacement of the shoe. While in many ofits aspects the invention isnot limited in respect to the character of the lasting; means, a tool which is efiective and advantageous for the purposes of the invention comprises a driven roll, as herein shown, constructed for frictional engagement with the upper to work itinto lasted position. Novel features of the invention are also to be recognized in. the construction of the lasting roll. including provision for yield in conformity to the shape of the shoe and provision for insuring adequate friction between the roll and the upper. For the purposes of shank lasting the roll herein shown has a convex peripheral curvature lengthwise of its axis to conform approximately to the concavity, at the shank of a shoe and is of such length as to engage the upper substantially from the ball to the heel seat and thus to last the entire shank at each side of the shoe at a single operation, As a further important feature, the invention provides novel means for controllii' g the insole in the lasting operation, the construction shown comprismg a member which is mounted to turn with the shoe and serves to hold the insole closely against the bottom of the last where the margin of the upper is lasted inwardly over it. This insures that the margin of the upper as it is wiped inwardly, for example, by the lasting means will not adhere prematurely to the insole and thus interfere with the proper shaping of the shoe in the shank and also prevents danger of upturning or otherwise displacing.

the margin of the insole by the wiping pres sure. In shank lasting such control of the insole is particularly important because of the tendency of the insole not to lie in close conformity to the concave curvature of the last bottom, or in other words to bridge from the ball to the heel seat.

The novel features of the invention, including those hereinabove set forth, together with various details of construction and combinatiens of parts, will now be more particularly described with reference to the accompanying drawings and pointed out in the claims.

In the drawings:

Fig. 1 is a perspective view of the head portion of a machine in which features of the invention are embodied;

Figs. 2 and 3 are vertical sections through the shoe support and the shank portion of a shoe on said support, illustrating different positions of the support and the shoe in relation to the lasting tool in the course of the lasting operation, and

Fig. 4 shows the shoe and the lasting tool insubstantially the same relation as in Fig. 2 as viewed from a point underneath the shoe.

The machine comprises a supporting standard 2 upon the top of which is rotataloly mounted a shaft 4 arranged to be driven by a belt on a pulley 6 and carrying on one end a lasting roll 8. This roll in the machine shown is of such length asto extend substantially from the ball line of the shoe rearwardlyt-o the heel seat so as to last at one operation the entire shank portion of the shoe at either side. Moreover, as shown in Fig. l, the periphery of the roll 8 is convex in the direction of the length of the roll to conform approximately to the concavity of the shank of the shoe lengthwise of he shoe. lVhile the tool, in many of the aspects of the invention may be variously constructed for the purposes in view, a novel and advantageous construction for effecting frictional engagement with the upper to tighten it over the last and work it inwardly over the inf-ole comprises a band 10 of rubber which forms the peripheral portion of the roll and is provided with corrugationsl2 extending lengthwise of the roll, the corrugations in the construction shown extending substantially parallel to the axis of the roll. In operation the roll 8 is driven continuously in the direction of the arrow (1.

For presenting the shoe to the lasting roll the machine is provided with a shoe support comprising a pair of arms 13 which are fast on a rock shaft 14: mounted in a bearing in a bracket 16 which is vertically adjustable on the standard 2 and is held in adjusted position by tie bolts 18. Mounted on pivots 20 on the upper ends of the arms 13 is a stirrup-shaped shoe rest member or holder 22 upon which the shoe is positioned for the shank lasting operation. The member 22 carries a plate 24 provided with an upwardly bent end having a convex edge face 26 for engagement with the insole of the shoein the shank, as illustrated in Fig. 2. The plate 2 1 is adjustable lengthwise and is held in ad justed position by means of abracket 28 which serves to support an additional T- shaped shoe restmember 30 for engagement withrthe shoe on the opposite side from the roll. The member 30 is held in position by a clamping bolt 32 and may be adjusted by turning it, by sliding it up or down, or by swinging it toward or from the roll. The shoe support when not in use is maintained in a forwardlytipped position by means of a spring 34;, the limit of such forward movement being determined by a stop screw 36 which is carried by a dependinglug on the swinging support and is arranged to engage the bracket 16. To assist in swinging the support toward the lasting tool, one of the arms 13 is provided with a member 38 which is adapted-to be engaged by the hip of the operator a; he presents a shoe to the machine. Movement of the support toward the lasting tool may be limited by a stop screw 40 which is threaded in one of the arms 13 and is arranged to engage the bracket 16.

In the use of the machine illustrated for lasting the shank portion of a rubber soled shoe which has been previously lasted at the forepart and the heel end by the use, for example, of machines shown in the prior Letters Patent hereinbefore mentioned, the shoe is presented in engagement with the positioning members 24 and 30 sul'istantially as illustrated in 2, these members having been previously adjusted in accordance with the size of the shoes to he lasted in such manner that each shoe may be con veniently presented to them with the convex edge 26 of the sole rest plate 24; engaging the shank of the insole in a location near that side of the shoe that is toward the lasting roll but preferably further from the ill) iii)

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after the shoe has been positioned upon the members 24 and the member 22 will be tipped forwardly by the operator so that the side of the shoe may be presented in engagement with the lasting roll at a dis tance from the bottomcdge of the upper, as illustrated in Fig. 2. In thus presenting the shoe the operator will preferably engage it with both hands at its opposite ends and will effect the. tipping or turning of the shoe rest member 22 through the shoe. As the operator tips the shoe into the position illus trated in Fig. 2 he swings the support rearwardly toward the lasting roll by engagement of his hip with the member 38. As the roll engages the side of the shoe it acts frictionally to draw and press the upper into conformity to the contour of the last; While holding the shoe in engagement with the roll the operator turns the shoe with its supporting member 22 in the direction of the arrow 6 to the position illustrated in Fig. 3, thus effecting a transfer of the area of effective engagement of the roll with the upper towardthe bottom edge of the upper and renclering the roll effective as it draws and holds the upper tightly in conformity to the contour of the last to bend its margin inwardly into parallel relation to the bottom face of the insole and to press it upon said face so that the cement previously applied to the upper or the insole becomes effective to fasten the upper in lasted position. It will be noted that the axis of turning movement of the shoe, represented by a line connecting the pivots 20, is substantially parallel to the axis of the roll 8 and intersects the shoe substantially or approximately at the center of curvature, in a plane perpen dicular to the shoe bottom, of that portion of the shoe upon which the roll acts in the lasting operation, so that the shoe may be turned as required without any substantial bodily displacement of it, the operator simply maintaining pressure on the member 38 to hold the support as a whole in shoe the shoe to the lasting roll to complete the lasting at that side of the shoe. The shoe is then completely lasted and is ready for the sole laying operation.

As the shoe is turned to render the roll effective to lay themargin of the upper inwardly over the insole, the sole rest member 24 has an important function, not only in holding the marginal portion of the insole from displacement by the inwardly directed lasting pressure of the roll, but also in pressing the insole closely against the bottom of the last in the inward curve at the shank, thus preventing premature adhesion between the upper and the insole such as might occur if the margin of the insole were unduly separated from the bottom of the last, which would render it difficult if not impossible to draw the upper tightly into conformity to the contour of the last claim as new and desire to secure by Letters Patent of the United States is:

1. A machine of the class described having, in combination, lasting means constructed to work an upper into lasted position by progressive action along the surface, of the upper, and a shoe positioning device mounted for. turning movement with a shoe to transfer the area of effective engagementv of said lasting means with the upper progressively toward the bottom edge of the upper.

2. A machine of the class described-having, in combination, a lasting tool constructed. to work an upper into lasted position by progressive action along the surface of the upper, and ,a shoe support movable to carry the side of a shoe into engagement with said tool and comprising a member mounted to turn with the shoe about an. axis extending lengthwise of the shoe to render the tool progressively effective to bend the margin of the upper inwardly over the bottom of the last.

3. A machine of the class described having, in combination, lasting means constructed to act frictionallyon an upper to work it into lasted. position, and a shoe positioning device mounted to turn with a shoe about an axis that intersects the shoe to render said lasting means progressively effective to bend,

the margin of the upper over the edgeof the insole and then to'lay it in parallel relation to the bottom face of the insole.

at. A machine of the class described having, in combination, side lasting means, and a shoe support arranged to present the side of a shoe in engagement with said lasting means and comprising a. member mounted to turn with the shoe about an axis which eX- tends lengthwise of and intersects the shoe to renderthe lasting means eliective to worli the upper progressivelyover the edge of the shoe bottom and into parallel relation to the bottom face of the insole. V 5. A machine or the class descr'bed having, in combination, a lasting tool, and shoe positioning means arranged to present the side of a shoe in engagement with said tool and comprising a with the shoe about an axis extending lengthwise of the shoe approximately atthe center of curvature, in a plane perpendicular to the shoe bottom, of that part of the shoe which is presented in engagement with the tool.

6. A machine of the class described having, in combination, lasting means construct-- ed to act progressively along the surface of an upper to work the upper into lasted position, and a shoe positioning device movable with a shoe toward said lasting means, said shoe positioning device being constructed to permit turning movement of the shoe in engagement with the means to bend the margin of the upper inwardly over the insole into substantially parallel relation to the bottom face of the insole.

7. A machine of the class described haring in combination, a frictional lasting tool, and a shoe support constructed and arranged to be moved by the operator to pre sent a shoe in engagement with said tool, said shoe support comprising a member an ranged to be turned by the operator as he holds the support in shoe presenting position to transfer the area of effective action of the tool progressively toward the bottom edge of the upper and to bend the margin of the upper inwardly over the insole.

8. A machine of the class described having, in combination, side lasting means, and a shoe support constructed to be engaged and moved toward said lasting means by pressure or" the operators hip against it, said shoe support including a shoe positioning device mounted to turn with the shoe about an axis extending lengthwise oi the shoe to bring ditl'erent portions 01". the shoe within the tield or action of the lasting means.

9. A machine of the class described having. in combination. a side lasting tool, and shoe positioning means constructed to posi tion a shoe with its side toward said tool and comprising. a stirru -shaped member mounted to turn about an axis extending lengthwise of and through the shoe to render the tool progressively ellective to work the upper down the side and inwardly over the bottom of the last.

10. A machine of the cla s described having. in combination a side lasting tool, and

a shoe support arranged to present a shoe with its side toward said tool and upon which the shoe may be reversed end tor end member mounted to turn to present its opposite sides toward the tool, said shoe support comprising a shoe positioning member mounted to turn with the shoe in either position of the latter about anaxis that extends lengthwise of the shoe to render the tool progressively effective to work the upper down the side and inwardly over the bottom of the last.

11. A machine of the class described hav ing, in combination, aside lasting tool, and a shoe support comprising members construct ed and arranged to engage the shoe respectively upon its bottom and upon one side for presenting the other side of the shoe tothe tool, said members being mounted to turn with the shoe about an axis extending lengthwise of the shoe to render the tool progressively effective upon different portions of the upper. I

12. A machine of the class described having, in combination, a frictional side lasting tool, and a shoe support comprising members constructed and arranged for engagement respectively with the bottom and a side the shoe and upon which the shoe may be reversed end for end to present its opposite sides to the tool, said members being relatively adjustable for shoes of difi'erent sizes.

13. A machine of the class described having, in combination, a frictional lasting tool, and shoe vpositioning means constructed to present a shoe to said tool and to turn with the shoe to render the tool effective, to bend the margin of the upper inwardly over the insole comprising a member arranged to engage the insole near that portion of its margin where the upper is bent inwardly by the.

tool to hold the insole closely upon the bottom of the last.

14:. A machine of the class described having, in combination, side lasting means, and a shoe positioning device constructed and arranged to position a shoe with its side toward said lasting means and to permit turningot the shoe to render the lasting means elitective to bend the margin of the upper inwardly into adhering relation to the bottom face of the insole, said shoe positioning device comprising a member arranged to engage the insole near its side edge to prevent displacement of the insole by the lasting means. a i

15. A machine of the class described having, in combination, a side lasting roll constructed to act frictionally on the upper at the shank of a shoe, and a shoe positioning device constructed to permit turning of the shoe about an axis extending lengthwise of the shoe to render the roll effective to wipe the margin oi the upper inwardly into adhering relation to the insole, said shoe positioning device comprising a member arranged to ei'igage the shanlrportion of the in sole as the shoe is turned and to press the in sole into the shank curvature of the last bot-- tom to prevent premature adhesion of the upper to the insole.

16. A machine of the class described hav ing, in combination a side lasting tool for laying the margin of an upper inwardly over the bottom of an insole on a last, and a shoe support constructed and arranged to positiona shoe with its side toward said tool and having thereon a member for engaging the insole in a position to prevent displacement of the margin of the insole by the action of the lasting tool and another member arranged to afford a rest for the opposite side of the shoe from that on which the tool i is acting.

17. A machine of the class described having, in combination, a frictional lasting tool, and a shoe support comprising a stirrupshaped member mounted to turn with the shoe about an axis extending lengthwise of the shoe to render the tool progressively effective upon different portions of the upper and having thereon a pair of shoe rest members arranged to engage the side and the bottom of the shoe respectively and upon which the shoe may be reversed end for end to present either side to the lasting tool.

18. A machine of the class described having, in combination, lasting means constructed to act upon substantially the entire length of the shank of a shoe at one operation, and means for presenting a shoe to said lasting means mounted to turn with the shoe about an axis extending lengthwise of the shoe to render said lasting means progressively eifective to work the upper inwardly in the shank and over the margin of the insole.

' 19. A machine of the class described having, in combination, frictional lasting means constructed to conform approximately to the curvature of the shank of a shoe lengthwise of the shoe and to engage the side of the shoe substantially continuously from the ball to the heel seat, and means for presenting a shoe to said lasting means comprising a member mounted to turn with the shoe to render the lasting means progressively effective to wipe the upper into the shank and over the margin of the insole.

20. A machine of the class described having, in combination, a frictional lasting tool constructed for engagement with the upper at the shank of a shoe to wipe the upper over the side of the last and inwardlyinto position to adhere to an insoleon the bottom of the last, and a shoe support movable in a direction widthwise of the shoe to present the shoe to said lasting tool comprising a member arranged to engage the insole at the shank and to press the insole toward the bottom of the last to prevent premature adhesion between the insole and the margin of fective engagement of the tool with the upper progressively toward the bottom edge of the upper.

23. A machine of the class described having, in combination, a driven rotary lasting tool constructed for frictional engagement with an upper,- and a shoe support constructed and arranged to present a shoe with its side toward the periphery of said tool and to turn with the shoe about an axis extend-- ing lengthwise of the shoe to render the tool effective to wipe the upper inwardly over the bottom of the last.

24. A machine of the class described having, in combination, a rotary lasting tool constructed for engagement with the side of an upper substantially from the ball to the heel seat and having a convex curvature lengthwise of its axis to conform approximately to the inward curvature of the shoe at the shank, and means for presenting a shoe to said tool constructed to permit turning of the shoe to render the tool effective to wipe the upper progressively inward over the insole.

25. A machine of the class described having, in combination, a driven lasting roll constructed to act frictionally on an upper at the shank to wipe the upper over the last and inwardly into adhering relation to the insole, said roll having a peripheral curvat-ure lengthwise of its axis to conform approximately to the shank curvature of the shoe, andshoe positioning means constructed to permit turning of the shoe in engagement with said roll.

26. A machine of the class described hav ing, in combination, a lasting roll having a corrugated rubber periphery adapted to act frictionally on an upper, and means for presenting a shoe to said roll constructed to permit turning of the shoe'to render the roll progressively efl'ective to bend the margin of the upper inwardly over the insole and to wipe it into parallel relation to thebottom face'of the insole. I

27. Amachine of the class described having, in combination, a driven lasting roll having a convex peripheral curvature' length' wise of its axis approximately complemental to' the lengthwise shank curvature of a shoe to adapt it to act in the shank of a shoe to Wipe the upper transversely of the edge of the shoe bottom and having a peripheral portion of yieldable material to permit further conformation to the shape of the shoe, and a shoe support movable to present a shoe with its side face in engagement With said roll.

28. In a machine of the class described, a lasting roll adapted to act frietionally upon the upper oi a shoe to WlPQtllQ upper into lasted position, the shoe engaging peripheral face of said roll extending lengthwise of its axis a sufiieient distance to permit the roll to act upon substantially the entire length of the shank of the shoe at one operation and having a convex curvature lengthwise of the axis of the roll to conform approximately to the inwardeurvature of the shank of the shoe. I

29. In a machine of the classdescribed, a lasting roll having a peripheral portion of material which iisyieldable in response to pressure of a shoe upon it and convexly curved lengthwise of the axis of the roll to adapt the roll to operate in the shank of the shoe, said roll being of such. length as to engage the shoe continuously throughout substantially the entire length of the shank.

In testimony whereof I have signed my name to this specification.

BERNHARDT JORGENSEN. 

